1991
EPA -Washington, DC, US,
“Manual of small public water supply systems”. US Environmental Protection Agency (EPA), Washington, DC, USA, p. vi, 211 p.: fig., tab., 1991.
D. M. Nielsen,
Practical handbook of ground-water monitoring. Chelsea, MI, USA: Lewis, 1991, p. x, 717 p.: fig., tab.
A. L. Berthe, Blokland, A., Bouare, S., Diallo, B., Diarra, M. M., Mariko, F., N'Djim, H., Sanogo, B., and Geerling, C.,
Profil d'environnement Mali-Sud : etat des resources naturelles et potentialites de developpement. Amsterdam, The Netherlands: Royal Tropical Institute, 1991, p. 79 p. + 1 map: 3 fig., 13 maps, 19 tab., photogr.
L. F. Requena and Myton, B. A.,
“Surface and groundwater contamination in selected watersheds in Southwestern El Salvador”, vol. no. 354. Environmental Health Project (EHP), Arlington, VA, USA, p. xvii, 152 p.: 1 fig., 4 maps, photogr., 16 tables, 1991.
S. S. Luxton, Fuller, C. E., Kane, J. K., Preble, R. E., and Utting, M. G.,
“Technical assistance program for the Ministry of Water Resources, Sultanate of Oman : task 3: surface water data collection : task 4: groundwater data collection and management”, vol. no. 332. Water and Sanitation for Health Project (WASH), Arlington, VA, USA, p. xix, 225 p. : 50 fig., 27 tab., 1991.
F. I. F. I. N. N. I. D. A. - Helsinki and Zanzibar (State). Ministry of Water, Energy, Construction, Land and Environment -TZ,
“Zanzibar urban water supply development plan : water resources study”. FINNIDA, Ministry of Foreign Affairs, Helsinki, Finland, p. 3 vols. (61, 250, 13 p.): 25 fig., 13 map., 1991.
1990
F. W. Odera, Karanja, J. N., and Ombai, M.,
“The approach for sustainable rural water supply in Nyanza province, Kenya”, presented at the 1990-01-01, Kisumu, Kenya, 1990, p. 76 p. : fig., map, tab.
A. Gupta, Kaul, S. N., Nandy, T., and Bal, A. S.,
“Design considerations for hand pump attachable iron removal plant”,
Journal of the Indian Association for Environmental Management, pp. p. 120-133: 2 fig., 9 tab., 1990.
J. Pickford,
Developing world water. London, UK: Grosvenor Press, 1990, p. 468 p.
R. Beck,
“Environmental profile Al Bayda Governorate, Yemen Arab Republic”. DHV, Amersfoort, The Netherlands, p. 48 p.: fig., map, photogr., 1990.
R. Beck,
“Environmental profile Dhamar Governorate, Yemen Arab Republic”. DHV, Amersfoort, The Netherlands, p. 48 p. : fig., map, photogr., 1990.
R. Beck,
“Environmental profile Tihama, Yemen Arab Republic”. DHV, Amersfoort, The Netherlands, p. 48 p. : fig., map., photogr., 1990.
H. Sahoo, Ravichandran, S., and Pundarikanthan, N. V.,
“Ground water quality of Bhubhaneswar (Orissa, India) in relation to land use”,
Asian environment, pp. p. 76-82: fig., tab., 1990.
G. P. Jones,
“Groundwater monitoring and management : proceedings of the symposium held at Dresden, German Democratic Republic (GDR) in March 1987”, vol. no. 173. IAHS Press, Institute of Hydrology, Wallingford, UK, p. xii, 484 p.: fig., tab., 1990.
N. L. I. L. A. C. O. - Arnhem, YE, Y. Ministry o, and DGIS, D. General fo,
“Proceedings of the seminar 'From depletion to a prudent use of groundwater', Rada, Republic of Yemen, 18-20 June 1990”. Ilaco, Arnhem, The Netherlands, p. iii, 159, 207 p.: fig., photogr., tab., 1990.